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公开(公告)号：DK549585D0
公开(公告)日：1985-11-28
申请号：DK549585
申请日：1985-11-28
Applicant: BASF AG
Inventor： BRUNNMUELLER FRITZ , STECHER KARLHEINZ , KROENER MICHAEL , SCHNEIDER ROLF
IPC: C07C255/16 , C01C3/00 , C01C3/02 , C01C3/04 , C01C3/10 , C07C67/00 , C07C211/10 , C07C253/00 , C07C253/08 , C07C255/19 , C07C255/24 , C07C255/29 , C07C
Abstract: Reaction products of hydrogen cyanide are prepared by a process in which hydrogen cyanide prepared in a conventional manner by pyrolysis at from 250 DEG to 650 DEG C. over a solid under from 5 to 200 mbar is cooled to a temperature of from 200 DEG to -10 DEG C. together with the other pyrolysis products, the hydrogen cyanide is then fed to a chemisorption reaction with a base or with a carbonyl compound, and the reaction products of hydrogen cyanide which are formed therein are removed from the system and brought to atmospheric pressure. In this process, the handling of large amounts of hydrogen cyanide is avoided.
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公开(公告)号：FI854623A0
公开(公告)日：1985-11-22
申请号：FI854623
申请日：1985-11-22
Applicant: BASF AG
Inventor： BRUNNMUELLER FRITZ , KROENER MICHAEL , GOETZE WALTER
IPC: C07B61/00 , C07C67/00 , C07C231/00 , C07C231/06 , C07C231/08 , C07C231/12 , C07C233/03 , C07C
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公开(公告)号：ZA8205074B
公开(公告)日：1983-06-29
申请号：ZA8205074
申请日：1982-07-16
Applicant: BASF AG
Inventor： BRUNNMUELLER FRITZ , SCHNEIDER ROLF , KROENER MICHAEL , MUELLER HANS , LINHART FRIEDRICH , BURKERT HANS , BEYER KARL-HEINZ
IPC: B01D21/01 , C08F8/00 , C08F8/12 , C08F26/00 , C08F26/02 , D06Q1/10 , D21H17/34 , D21H17/37 , D21H17/45 , C06C , C02F , C08F , D21D
CPC classification number: D21H17/455 , C08F8/12 , D21H17/34 , C08F126/02
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公开(公告)号：CA2085348C
公开(公告)日：2005-06-14
申请号：CA2085348
申请日：1991-10-04
Applicant: BASF AG
Inventor： KROENER MICHAEL , NILZ CLAUDIA , SENDHOFF NORBERT , STANGE ANDREAS , DE CLERCQ ARNOLD , RIEBELING ULRICH
Abstract: According to a paper, paperboard and cardboard internal sizing process, resi n size is used, as well as cationic polymers containing polymerized vinylamine units as fixing agents for the resin size.
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公开(公告)号：CA2145286C
公开(公告)日：2005-03-29
申请号：CA2145286
申请日：1993-11-25
Applicant: BASF AG
Inventor： NILZ CLAUDIA , DENZINGER WALTER , HARTMANN HEINRICH , KROENER MICHAEL , LINHART FRIEDRICH , SCHUHMACHER RUDOLF , MOENCH DIETMAR , STANGE ANDREAS
IPC: C08F220/04 , C08F8/12 , C08F26/00 , C08F226/02 , D21H17/34 , D21H17/37 , D21H17/43 , D21H17/45 , D21H21/10 , D21H21/18
Abstract: Use of copolymers which are obtainable by copolymerization of a) from 5 to 99 mol% of N-vinylcarboxamides, b) from 95 to 1 mol% of monoethylenically unsaturated carboxylic acids and/or the alkali metal, alkaline earth metal, ammonium or amine salts thereof and, if required, c) up to 30 mol% of other monoethylenically unsaturated com- pounds and, if required, d) up to 2 mol% of crosslinking agents and subsequent partial or complete elimination of the formyl groups from the N-vinylcarboxamides polymerized in the copolymer, with formation of amino or ammonium groups, are used as additives to paper stock for increasing the drainage rate and the retention in papermaking and the dry and wet strength of the paper.
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Patent Agency Ranking46.发明专利
公开(公告)号：FI102688B
公开(公告)日：1999-01-29
申请号：FI910328
申请日：1991-01-22
Applicant: BASF AG
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公开(公告)号：DK0758344T3
公开(公告)日：1998-03-02
申请号：DK95912254
申请日：1995-03-20
Applicant: BASF AG
Inventor： NILZ CLAUDIA , KROENER MICHAEL , WINTER MANFRED , STANGE ANDREAS , SCHUHMACHER RUDOLF
Abstract: PCT No. PCT/EP95/01030 Sec. 371 Date Sep. 30, 1996 Sec. 102(e) Date Sep. 30, 1996 PCT Filed Mar. 20, 1995 PCT Pub. No. WO95/26989 PCT Pub. Date Oct. 12, 1995Solutions of polymers containing vinylamine units, which solutions have a long shelf life, are prepared by hydrolyzing polymers containing N-vinylcarboxamide units with acids in an aqueous medium and removing the carboxylic acids eliminated from the polymers as esters from the aqueous polymer solution after the hydrolysis by adding at least stoichiometric amounts of at least one C1-C6-alcohol and distilling off the esters from the reaction mixture, and said aqueous solutions are used as dry and wet strength agents in papermaking.
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公开(公告)号：FI97405C
公开(公告)日：1996-12-10
申请号：FI931642
申请日：1993-04-13
Applicant: BASF AG
Inventor： KROENER MICHAEL , NILZ CLAUDIA , SENDHOFF NORBERT , STANGE ANDREAS , DE CLERCQ ARNOLD , RIEBELING ULRICH
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公开(公告)号：DK170826B1
公开(公告)日：1996-01-29
申请号：DK407888
申请日：1988-07-21
Applicant: BASF AG
Inventor： STANGE ANDREAS , DEGEN HANS-JUERGEN , AUHORN WERNER , WEBERNDOERFER VOLKMAR , KROENER MICHAEL , HARTMANN HEINRICH
Abstract: In the process, an agent which confers dry strength and can be obtained by mixing enzymatically degraded starch having a viscosity of 20 to 2,000 m Pa.s (determined on a 7.5% strength solution in water at 45 DEG C) with cationic polymers which contain, in copolymerised form,… a) diallyldimethylammonium chloride… b) N-vinylamine or… c) optionally substituted N-vinylimidazolines as characteristic monomers, the K-value of the cationic polymers being at least 30, is added to the paper stock and the stock is dewartered, during sheet formation.
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公开(公告)号：NO176526C
公开(公告)日：1995-04-19
申请号：NO910283
申请日：1991-01-24
Applicant: BASF AG
Inventor： FREUDENBERG ENRIQUE , LINHART FRIEDRICH , TRESCH RAINER , HARTMANN HEINRICH , DENZINGER WALTER , KROENER MICHAEL , SENDHOFF NORBERT
Abstract: In a process for making paper, paperboard and cardboard, paper pulps containing interfering materials are dehydrated in the presence of polymers which, as characteristic constituents, contain copolymerised units of the formulae … … with R and R = H or C1- to C3-alkyl, and have K values of at least 130, the polymers containing less than 10 mol% of units of formula II.
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